Envelop.



M. LQCKHART.

ENVELOP.

APPLICATION FILED OCT. 10, 1914.

Patented Jan. 4, 1916..

2 SHEETS-SHEET I.

- INVENTOR- fllexandefJl/illocifhari WITN ESSES COLUMBIA PLANOORAPH 60-,WASHINGTON, D. c.

A. M. LOCKHARTY.

ENVELOP.

APPLICATION man OCT. 10. 1914.

Patented Ian.4, 1916.

2 SHEETS-SHEET 2.

WITNESSES COLUMBIA PLANOGRAIH cm, WASHINGTON, u. c.

UNI

ALEXANDER M. LooKHAnT, or PITTSBURGH, PENNSYLVANIA.

' ENvnLo I Specification of Letters Patent.

"Patented Jan. 4-, 1916.

Application filed October-10, 1914. Serial No. 866,048.

T 0 all whom it may concern Be it known that I, ALEXANDER M. LOOK- HART,a citizen of the United States of America, residing at Pittsburgh, inthe 5 county of Allegheny and State of Pennsylvania, have inventedcertain new and useful Improvements in Envelops, of. which the followingis a specification, reference being had therein to the accompanyingdrawing.

This invention relates to envelops and has for its object to provide adevice of such class, with means in a manner as hereinafter set forth,to enable the envelop to be used for sending and return, that is to saywhereby the same envelop can be employed for forwarding purposes and forreturn purposes and to further provide an envelop with means to receivethe forwarding address and return address, said means concealing thereturn address when the envelop is used for forwarding purposes andconcealing the forwarding address when used for return purposes.

'With the foregoing and other objects in view the invention consists ofthe novel con struction, combination and arrangement of parts ashereinafter more specifically described and illustrated in theaccompanying drawings wherein is shown an embodiment of the invention,but it is to be understood that changes, variations and modificationscan be resorted to which come within the scope of the claim hereuntoappended.

In the drawings wherein like reference characters denote correspondingparts throughout the several views :Figure 1 is a perspective view .of adevice constructed in accordance with my invention; Fig. 2 is anenlarged section therethrough showing the envelop in sealed position;Fig. 3 is a perspective view of a slightly modified form of theinvention; and Fig. l is an enlarged section therethrough showing theenvelop sealed.

Referring to Figs. 1, 2, 3 of the drawings the envelop body is formedwith two plies, of any suitable material, as indicated at 1, 2, and eachof said plies is rectangular in contour and secured together at theirlongitudinal edges as well as at one end edge thereby forming areceptacle open at one end. The inner face of each of the plies 1, 2,has secured thereto a rectangular strip 3 of less width and length thanthe ply and which is flush with the free end edge of the ply. Each ofthe plies is formed with a transverse slot 4, and which constitutes amouth for the entrance of a pocket formed by the strip3 in connectionwith the ply.

Projecting from. each end edge of a ply is a triangular shaped flap 5,having se-- cured toeach side thereof a finger piece 6. The flaps 5 areof the same size and are adapted to be folded against the outer face ofa ply and extended through a mouth l whereby the open end of the plyportion or receptacle is closed. It will be noted that by fixing thestrips 3 to the inner faces of the plies l and 2, it

.will provide suitable pockets for the ends of the flaps 5 when insertedthrough the slots 4 so that said flaps will not interfere with thecontents of the envelop.

lVhen using the envelop for forwarding purposes the outer face ofoneflap is provided with an address and the two flaps then folded to extendinto a mouth 4. The

other side of the body near the mouth 4: is also provided with anaddress.

If it be desired to use the envelop for return purposes the flaps areswung free of the mouth 4 formed in one ply and we tend against theother face of the body portion and into the other mouth and whichconceals the address. The outer face of the other flap is then providedwith the address on the other side of the body portion:

By. the foregoing arrangement of an envelop it is obvious that the flapsare utilized for two purposes, one to close the mout hof the envelop andthe other for concealing andcarrying an address.

The form of envelop shown in Figs. 3 and 4 is what is termed acompartment envelop and includes two receptacles 7, 8, which constitutethe body portion of the envelop and said compartments are capable ofbeing folded against each other. Associating with each of thecompartments is a flap 9. One side of one compartment is provided with atransverse slot and the opposite side of the other compartment with atransverse slot. The slots are indicated at 10. Each of the flaps 9 isformed with a reinforcing strip 11 and a finger piece or loop 12. Eachof the compartments opens at that end which is provided with a flap 9.When the two compartments are folded together one of the slots 10 isconcealed and said slots 10 constitute mouth pieces which are formed bystrips 13 securedto the inner.

face of one wall of a compartment and which in connection with a wallprovide a pocket. Then the compartments are folded together, two flapsare extended into that slot 10 which is exposed, under such conditionsthe receptacles are closed. The flaps 9 are utilized in the same manneras the flaps 5, that is to say for concealing and carrying an addressand for closing the mouth of the compartments.

lVhat I claim is An envelop of the class described comprising abodyconsisting of a front and rear wall secured together and open at one endto form an entrance opening therefor, said walls each having atransverse slit therein, strips secured to the inner faces of said wallsand forming internal pockets thereon, said strips terminating at theirone end in the aforesaid slits whereby to provide entrance openings forsaid pockets, the opposite ends of said strips terminating flush withthe end edges of said walls, a substantially triangular covering flapformed on the edge of each portion of the body at the open end thereof,said flaps being adapted to contain a forwarding and return addressthereon and further adapted for folding together over the open end ofthe body to be received in one of said slits and form a closure for saidbody, and finger pieces carried on said flaps for the operation thereof.

In testimony whereof I aflix'my signature in the presence of twowitnesses.

ALEXANDER M. LOCKHART. lVitnesses MAX H. SRoLovrrz, MARIE H. ZBIERA.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents. Washington, D. G.

